Vulnerability in Linux
CVE-2026-23246
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration link_id is taken from the ML Reconfiguration element (control & 0x000f), so it can be 0..15. link_removal_timeout[] has IEEE80211_MLD_MAX_NUM_LINKS (15) elements, so index 15 is out-of-bounds. Skip subelements with link_id >= IEEE80211_MLD_MAX_NUM_LINKS to avoid a stack out-of-bounds write.
EPSS: 0.003 (21.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux — versions 8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c, 6.5, 0
- Linux Linux_kernel — versions 6.5, 7.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-23246?
- CVE-2026-23246 is a high-severity vulnerability in Linux, classified under Improper Validation of Array Index. CVSS score: 8.8/10. Published 2026-03-18.
- How severe is CVE-2026-23246?
- High severity. CVSS v3 base score is 8.8 out of 10.